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http://dx.doi.org/10.5762/KAIS.2015.16.8.5654

Inducing stress-strain relationship for element simulation of cyclic triaxial test on unsaturated soil  

Lee, Chung-Won (National Civil Defense and Disaster Management Training Institute, Ministry of Public Safety and Security)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.8, 2015 , pp. 5654-5663 More about this Journal
Abstract
In the unsaturated soil, suction, the negative pore water pressure leads to increases of the yield stress and the plastic shear stiffness of the soil skeleton due to the growth in interparticle stress. Therefore, in this study, the stress-strain relationship based on cyclic elasto-plastic constitutive model extended for unsaturated soil considering the 1st and the 2nd yield functions was induced in order to account for these effects of suction under the dynamic loading condition such as the earthquake. Through the program code considering this relationship and the routine of the cyclic loading with the reversion of loading direction, the numerical simulation of the cyclic triaxial test under the unsaturated condition would be possible. It is expected that the results of this study possibly contribute to the accuracy improvement on the prediction of unsaturated soil behavior under the dynamic loading condition.
Keywords
Cyclic elasto-plastic constitutive model; Dynamic loading; Element simulation; Stress-strain relationship; Suction;
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1 F. Oka, A. Yashima, A. Tateishi, Y. Taguchi, S. Yamashita, "A cyclic elastoplastic constitutive model for sand considering a plastic-strain dependence of the shear modulus", Geotechnique, Vol. 49, No. 5, pp. 661-680, 1999. DOI: http://dx.doi.org/10.1680/geot.1999.49.5.661   DOI
2 F. Oka, "A cyclic elasto-viscoplastic constitutive model for clay based on the non-linear hardening rule", Proc. 4th International Symposium on Numerical Models in Geomechanics, Swansea, Pande, G. N. and Pietruszczak, S. eds., 1, Balkema, pp. 105-114, 1992.
3 Y. Taguchi, A. Tateishi, F. Oka and A. Yashima, "A Cyclic elasto-plastic model based on the generalized flow rule ant its application", Proc. 5th Int. Symposium on Numerical Models in Geomechanics, Davos, Switzerland, Pande, G. N. and Pietruszczak, S. eds., Balkema, pp. 57-62, 1995.
4 A. Tateishi, Y. Taguchi, F. Oka and A. Yashima, "An elasto-plastic model for sand and its application under various stress conditions", Proc. of 1st Int. Conference on Earthquake Geotechnical Engineering, Tokyo, Ishihara, K. ed., Balkema, Vol. 1, pp. 399-404, 1995.
5 F. Oka and H. Washizu, "Constitutive equations for sand and overconsolidated clays", Proc. Int. Conference on Recent Advances in Earthquake Engineering and Soil Dynamics, St. Louis, Prakash, S. ed., 1, pp. 71-74, 1981.
6 P. J. Armstrong and C. O. Frederick, "A mathematical representation of the multiaxial Bauschinger effect", C. E. G. B. Report RD/B/N, p. 731, 1966.
7 J. L. Chaboche and G. Rousselier, "On the plastic and viscoplastic constitutive equations Part I and Part II", Journal of Pressure Vessel Technology, Transactions of the ASME, Vol. 105, pp. 153-164, 1983.   DOI
8 F. Oka, "Constitutive equations for granular materials in cyclic loadings", Proc. IUTAM Conference on Deformation and Failure of Granular Materials, Delft, Vermeer, P. A. and Luger, H. J. eds., Balkema, pp. 297-306, 1982.
9 P. M. Naghdi and J. A. Trapp, "Restrictions on constitutive equations of finitely deformed elasto-plastic materials", Quarterly Journal of Mechanics and Applied Mathematics, Vol. 28, Pt. 1, pp. 25-46, 1975. DOI: http://dx.doi.org/10.1093/qjmam/28.1.25   DOI
10 F. Oka, T. Kodaka, S. Kimoto, Y. S. Kim and N. Yamasaki, "A multi-phase coupled FE analysis using an elasto-viscoplastic model for unsaturated soil", Geomechanics II, Geotechnical Special Publication, ASCE, Proc. 2nd US-Japan workshop on Geomechanics, pp. 124-131, 2006. DOI: http://dx.doi.org/10.1061/40870(216)10   DOI
11 D. Gallipoli, A. Gens, R. Sharma and J. Baunat, "An elasto-plastic model for unsaturated soil incorporating the effects of suction and degree of saturation on mechanical behavior", Geotechnique, Vol. 53, No. 1, pp. 123-135, 2003. DOI: http://dx.doi.org/10.1680/geot.2003.53.1.123   DOI
12 C. Jommi, "Remarks on the constitutive modelling of unsaturated soils, Experimental Evidence and Theoretical Approaches in Unsaturated Soils", Tarantino, A. and Mancuso, C. eds., Balkema, pp. 139-153, 2000.
13 F. Oka, T. Kodaka, S. Kimoto, R. Kato and S. Sunami, "A hydro-mechanical coupled analysis of an unsaturated river embankment due to seepage flow", Key engineering materials, Trans tech publications, Vol. 340-341, pp. 1223-1230, 2007. DOI: http://dx.doi.org/10.4028/www.scientific.net/KEM. 340-341.1223   DOI
14 F. Oka, S. Kimoto, R. Kato, S. Sunami and T. Kodaka, "A soil-water coupled analysis of the deformation of an unsaturated river embankment due to seepage flow and overflow", Proc. 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, India, 1-6 October 2008, Singh, D. N. ed., pp. 2029-2041, 2008.
15 R. Kato, "Development of an unsaturated seepagedeformation coupled simulation method and its application to river embankment", Ph.D. dissertation, Kyoto University, Japan, 2011. (in Japanese)